“We just got back open for business, and what a horrible view for the customers to come out and to see,” Morrow said. “Because when it comes in, it comes right into the back of our docks to the back of the restaurant, and it’s such a horrible green film on the water.”

Underwater boat cleaner John Krantz initially saw it near Manasota Key in the days after Hurricane Irma passed.

“We usually get red tide, but nothing like the algae bloom floating on the surface,” he said.